pissant

pissant (n.)1660s, "an ant," from first element of pismire (q.v.) + ant. Meaning "contemptible, insignificant person" is from 1903. "[B]y sun-down [the gals] come pourin out of the woods like pissants out of an old log when tother end\\'s afire." ["Dick Harlan\\'s Tennessee Frolic," in collection "A Quarter Race in Kentucky," Philadelphia, 1846]